TM 1-1520-238-T-69278986.PILOT COLLECTIVE STICK  DOES NOT ROTATE LANDING/SEARCH LIGHT 986TO THE RIGHTTools:NomenclaturePartNumberTool Kit, ElectricalSC518099CLA06RepairersMultimeter, DigitalAN/PSM-45Personnel Required:68XArmament/Electrical Systems RepairerReferences:TM 1-1520-238-23Equipment Conditions:RefConditionTM 1-1520-238-23Crew station seat (pilot)removedWARNINGTurn off power before detaching orattaching wires and connectors. Highcurrent 28 VDC or 115 VAC is present.Failure to do so could result in death orserious injury.1. Check for open between J107-n and DS11-4.Does open exist?YESRepair open wire.Go to paragraph 980.NOGo to step 2.2. On pilot collective stick, set and holdEXT/RET/L/Rswitch (S1) to R, check for openbetween J107-m and J107-n.Does open exist?YESReplace pilot EXT/RET/L/Rswitch (S1)(TM 1-1520-238-23).NOReplace landing/search light(TM 1-1520-238-23).END OF TASK